debut: 2/7/03
17,450 runs
During a sale, markers cost $4.00 each. For every 4 markers purchased, the customers received 2 free. If 80 markers were given free and the sales totaled $840.00, how many individual markers were purchased?
(No one purchased more than 4 markers.)
(No one purchased more than 4 markers.)
This question was in my son's homework. Can you solve it without external assistance?